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GRADE 1 WORKSHEETS: Addition.

Adding whole tens (2 addends). Problems with answers.


GRADE 1 WORKSHEETS. ADDITION.

Page 1.




Data: __________________ Name: _______________________________ Score:__________
Adding whole tens (2 addends).


50 +20 =__80 +30 =__20 +40 =__

20 +20 =__50 +10 =__40 +90 =__

50 +80 =__40 +90 =__60 +80 =__

90 +40 =__90 +80 =__70 +90 =__

70 +20 =__80 +30 =__80 +50 =__

80 +90 =__40 +40 =__80 +20 =__

40 +10 =__50 +40 =__60 +70 =__

30 +80 =__40 +70 =__70 +60 =__

30 +40 =__70 +10 =__60 +30 =__

70 +80 =__50 +30 =__50 +60 =__

20 +10 =__70 +30 =__50 +30 =__

90 +30 =__60 +60 =__10 +50 =__



GRADE 1 WORKSHEETS. ADDITION.

Page 2.




Data: __________________ Name: _______________________________ Score:__________
Adding whole tens (2 addends).


10 +70 =__20 +30 =__90 +10 =__

20 +50 =__60 +10 =__20 +90 =__

80 +70 =__50 +90 =__30 +10 =__

20 +30 =__90 +30 =__70 +70 =__

10 +40 =__70 +20 =__30 +40 =__

80 +70 =__10 +60 =__50 +80 =__

10 +50 =__40 +40 =__40 +90 =__

60 +30 =__60 +60 =__40 +60 =__

90 +20 =__20 +20 =__10 +40 =__

70 +40 =__90 +30 =__40 +50 =__

30 +60 =__70 +80 =__20 +20 =__

10 +90 =__40 +20 =__20 +60 =__



GRADE 1 WORKSHEETS. ADDITION.

Page 3.




Data: __________________ Name: _______________________________ Score:__________
Adding whole tens (2 addends).


10 +10 =__40 +20 =__40 +40 =__

90 +30 =__50 +50 =__30 +50 =__

80 +80 =__70 +30 =__90 +60 =__

10 +20 =__60 +40 =__50 +30 =__

80 +10 =__60 +60 =__40 +10 =__

20 +50 =__50 +30 =__10 +90 =__

10 +10 =__70 +10 =__80 +20 =__

40 +10 =__90 +30 =__30 +10 =__

90 +60 =__10 +20 =__30 +70 =__

30 +20 =__80 +40 =__30 +10 =__

80 +80 =__10 +80 =__80 +90 =__

10 +50 =__40 +30 =__10 +50 =__



GRADE 1 WORKSHEETS. ADDITION.

Page 4.




Data: __________________ Name: _______________________________ Score:__________
Adding whole tens (2 addends).


90 +40 =__70 +20 =__60 +30 =__

10 +10 =__10 +10 =__90 +40 =__

70 +80 =__10 +90 =__90 +80 =__

50 +80 =__30 +20 =__90 +50 =__

80 +40 =__40 +60 =__40 +20 =__

80 +40 =__60 +40 =__40 +70 =__

60 +70 =__50 +80 =__70 +20 =__

40 +50 =__80 +30 =__40 +40 =__

10 +50 =__80 +90 =__20 +70 =__

90 +30 =__30 +50 =__30 +90 =__

50 +90 =__50 +50 =__20 +50 =__

10 +90 =__60 +40 =__50 +20 =__



GRADE 1 WORKSHEETS. ADDITION.

Page 5.




Data: __________________ Name: _______________________________ Score:__________
Adding whole tens (2 addends).


30 +70 =__40 +30 =__60 +30 =__

80 +30 =__60 +20 =__30 +20 =__

80 +30 =__90 +90 =__20 +30 =__

10 +70 =__50 +70 =__90 +50 =__

10 +20 =__70 +60 =__10 +90 =__

10 +20 =__50 +20 =__30 +40 =__

80 +80 =__40 +40 =__70 +30 =__

70 +60 =__40 +30 =__70 +20 =__

70 +90 =__90 +70 =__10 +70 =__

10 +40 =__40 +70 =__90 +80 =__

90 +20 =__90 +30 =__10 +60 =__

30 +50 =__30 +30 =__70 +60 =__



GRADE 1 WORKSHEETS. ADDITION. ANSWERS.

Page 1.



Adding whole tens (2 addends).


50 +20 =7080 +30 =11020 +40 =60

20 +20 =4050 +10 =6040 +90 =130

50 +80 =13040 +90 =13060 +80 =140

90 +40 =13090 +80 =17070 +90 =160

70 +20 =9080 +30 =11080 +50 =130

80 +90 =17040 +40 =8080 +20 =100

40 +10 =5050 +40 =9060 +70 =130

30 +80 =11040 +70 =11070 +60 =130

30 +40 =7070 +10 =8060 +30 =90

70 +80 =15050 +30 =8050 +60 =110

20 +10 =3070 +30 =10050 +30 =80

90 +30 =12060 +60 =12010 +50 =60



GRADE 1 WORKSHEETS. ADDITION. ANSWERS.

Page 2.



Adding whole tens (2 addends).


10 +70 =8020 +30 =5090 +10 =100

20 +50 =7060 +10 =7020 +90 =110

80 +70 =15050 +90 =14030 +10 =40

20 +30 =5090 +30 =12070 +70 =140

10 +40 =5070 +20 =9030 +40 =70

80 +70 =15010 +60 =7050 +80 =130

10 +50 =6040 +40 =8040 +90 =130

60 +30 =9060 +60 =12040 +60 =100

90 +20 =11020 +20 =4010 +40 =50

70 +40 =11090 +30 =12040 +50 =90

30 +60 =9070 +80 =15020 +20 =40

10 +90 =10040 +20 =6020 +60 =80



GRADE 1 WORKSHEETS. ADDITION. ANSWERS.

Page 3.



Adding whole tens (2 addends).


10 +10 =2040 +20 =6040 +40 =80

90 +30 =12050 +50 =10030 +50 =80

80 +80 =16070 +30 =10090 +60 =150

10 +20 =3060 +40 =10050 +30 =80

80 +10 =9060 +60 =12040 +10 =50

20 +50 =7050 +30 =8010 +90 =100

10 +10 =2070 +10 =8080 +20 =100

40 +10 =5090 +30 =12030 +10 =40

90 +60 =15010 +20 =3030 +70 =100

30 +20 =5080 +40 =12030 +10 =40

80 +80 =16010 +80 =9080 +90 =170

10 +50 =6040 +30 =7010 +50 =60



GRADE 1 WORKSHEETS. ADDITION. ANSWERS.

Page 4.



Adding whole tens (2 addends).


90 +40 =13070 +20 =9060 +30 =90

10 +10 =2010 +10 =2090 +40 =130

70 +80 =15010 +90 =10090 +80 =170

50 +80 =13030 +20 =5090 +50 =140

80 +40 =12040 +60 =10040 +20 =60

80 +40 =12060 +40 =10040 +70 =110

60 +70 =13050 +80 =13070 +20 =90

40 +50 =9080 +30 =11040 +40 =80

10 +50 =6080 +90 =17020 +70 =90

90 +30 =12030 +50 =8030 +90 =120

50 +90 =14050 +50 =10020 +50 =70

10 +90 =10060 +40 =10050 +20 =70



GRADE 1 WORKSHEETS. ADDITION. ANSWERS.

Page 5.



Adding whole tens (2 addends).


30 +70 =10040 +30 =7060 +30 =90

80 +30 =11060 +20 =8030 +20 =50

80 +30 =11090 +90 =18020 +30 =50

10 +70 =8050 +70 =12090 +50 =140

10 +20 =3070 +60 =13010 +90 =100

10 +20 =3050 +20 =7030 +40 =70

80 +80 =16040 +40 =8070 +30 =100

70 +60 =13040 +30 =7070 +20 =90

70 +90 =16090 +70 =16010 +70 =80

10 +40 =5040 +70 =11090 +80 =170

90 +20 =11090 +30 =12010 +60 =70

30 +50 =8030 +30 =6070 +60 =130



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